H05B41/3922—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor with possibility of light intensity variations and measurement of the incident light

Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS

Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE

Y02B20/46—Control techniques providing energy savings based on detection of the illumination level

Abstract

Modern illumination systems are equipped with photosensors. The photosensors which are normally used do not, however, detect the illuminance (intensity of illumination, lighting level) (E0) which can be measured on an area (34) to be illuminated, but the luminous flux (light flux) reflected from this area. The novel method and the circuit arrangement for carrying it out are intended to effect an automatic matching of the measured values to the actual control variable, the illuminance (E0). In the novel method, the measured value which is transmitted by a sensor module (4) via an application circuit (5) to a bus coupling (2) is amplified to the actual value by a gain control which acts as actuator of a closed-loop control circuit. For gain control, a resistor network (9) is connected via analog switches (24) to the feedback (8) of an operational amplifier (7) of the bus coupling (2) depending on a value which is digitally transmitted by the bus coupling (2). The method and the arrangement to carry it out are particularly suitable for illumination control in conjunction with house installation systems which can be bused. <IMAGE>

Dadurch, daß die Busankopplung einen Prozessor aufweist, der mit einem beschreibbaren Speicherelement und einem Logikteil versehen und über ein an den Bus anschließbares Programmiergerät bedienbar ist, können alle benötigten Auswertungen in der dem Sensormodul zugeordneten Busankopplung durchgeführt werden. Characterized in that the bus coupling a processor, which is provided with a writable memory element and a logic part and operated via a connectable to the bus programming device, all the necessary evaluations can be in the associated sensor module bus coupling performed.Mittels des an den Bus anschließbaren Programmiergerätes ist eine komfortable Eichung der Anlage möglich. By means of the connectable to the bus programming device is possible a convenient calibration of the system.Zusätzlich kann über das Programmiergerät jederzeit, beispielsweise zum Einsatz neuer Lichtquellen oder zur Beleuchtung andersartiger Flächen, eine neue Parametrierung der Anlage vorgenommen werden. In addition, a new parameterization of the system can via the programming device at any time, for example, the use of new light sources for illumination or different type of surfaces, are made.

Die Erfindung soll nun anhand eines in der Zeichnung grob schematisch wiedergegebenen Ausführungsbeispiels näher erläutert werden. The invention will now be explained in more detail with reference to a very schematically shown in the drawings embodiment.Es zeigen: Show it:

Der Detektor 6 steht über den Bus 3 mit wenigstens einer der Teilnehmerstationen 1 in Wirkverbindung. The detector 6 is connected via the bus 3 with at least one of the subscriber stations 1 in operative connection.Zusätzlich können die Teinehmerstationen 1 über den Bus 3 auch untereinander in Verbindung stehen und über das Programmiergerät 28 angesprochen werden. In addition, the Teinehmerstationen 1 can also with each other are provided on the bus 3 in conjunction and can be addressed by the programmer 28th

Dimmable operating device with internal dimming characteristic, method of compensating for tolerances driven by an operating device emitting diodes and methods for configuration of an operating device for lamps